桑椹菌核病菌多样性调查

2003～2006年对本地果桑上桑椹菌核病病菌的多样性进行了调查，结果发现有5种核盘菌：Ciboria comnculoides，Ciboria shiraiana，Scleromitrula sp．，Scleromitrula rubicola和Synciboria ningpoensis。其中Ciboria shiraiana和Scleromitrula sp．的出现频率分别高达49．7％和41．9％。Scleromitrula sp．和Synciboria ningpoensis是2种新类型。Scleromitrula sp．的子囊盘高2．5～4．1mm，宽1．4～3．0mm，子囊孢子大小7．7～11．1×3．4～4．1μm，纵向有一明显内凹的特征。Synciboria ningpoensis的子实体冠状，2．3～2．5×3．0—3．8mm，由多个无柄的直径512～704μm微子囊盘组成。

Diversity Investigation of Mulberry Sclerotiniose Pathogen

Species diversity of mulberry sclerotiniose pathogen was investigated during 2003--2006, in Ningbo, China. Five sclerotiniose pathogens were collected： Ciboria caranculoides, Ciboria shiraiana, Scleromitrula sp., Scleromitrula rubicol and Synciboria ningpoensis. Appearance frequency, Ciboria shiraiana was 49.7%, Scleromitrula sp. was 41.9% . Scleromitrula sp. and Synciboria ningpoensis were new types. Apothecia of Scleromitrula sp. 2.5--4.1 mm high, 1.4--3.0 mm borad. Ascospores 7.7-- 11.1 × 3.4--4.1 μm, depressed in length. Ascocarp of Synciboria ningpoensis crown-shaped, 2.3-- 2.5 × 3.0- 3.8 mm, densely covered many cup-shaped micro-apothecia. The micro-apothecium nonstipe, cup-shaped, 512--704 μm in diameter.